Ships – Hull or hull adjunct employing fluid dynamic forces to... – Movably mounted hull portion or hull adjunct
Reexamination Certificate
2005-03-08
2005-03-08
Avila, Stephen (Department: 3617)
Ships
Hull or hull adjunct employing fluid dynamic forces to...
Movably mounted hull portion or hull adjunct
C440S069000
Reexamination Certificate
active
06863013
ABSTRACT:
A boat propulsion system includes a boat having an elongated hull with a water flow channel formed in the bottom thereof, wherein a movable trim plate is disposed within the water flow channel for controlling a flow of water to a surface-piercing propeller which is positioned aft of the water flow channel and which is disposed within a propeller cavity formed in the bottom of the hull. In a fully extended position, the trim plate is flush with the hull of the boat, and in a fully recessed position the trim plate is completely recessed within the water flow channel. The trim plate is variably movable between the recessed and fully extended positions to provide for performance advantages at various boat speeds.
REFERENCES:
patent: 763684 (1904-06-01), Manaker
patent: 904313 (1908-11-01), Davis
patent: 1059806 (1913-04-01), Yarrow
patent: 1227357 (1917-05-01), Yarrow
patent: 1543082 (1925-06-01), Harley
patent: 2896565 (1959-07-01), Stevens
patent: 3440743 (1969-04-01), Frederick
patent: 3698343 (1972-10-01), Boome
patent: 3707936 (1973-01-01), Harris
patent: 3745963 (1973-07-01), Fisher
patent: 3763810 (1973-10-01), Payne
patent: 3933116 (1976-01-01), Adams et al.
patent: 3980035 (1976-09-01), Johansson
patent: 4015556 (1977-04-01), Bordiga
patent: 4088091 (1978-05-01), Smith
patent: 4371350 (1983-02-01), Kruppa et al.
patent: 4406635 (1983-09-01), Wuhrer
patent: 4689026 (1987-08-01), Small
patent: 4713028 (1987-12-01), Duff
patent: 4977845 (1990-12-01), Rundquist
patent: 5046975 (1991-09-01), Buzzi
patent: 5066255 (1991-11-01), Sand
patent: 6045420 (2000-04-01), Small et al.
patent: 6138601 (2000-10-01), Anderson et al.
patent: 6234854 (2001-05-01), Rydzewski
Avila Stephen
Barnes & Thornburg LLP
LandOfFree
Boat propulsion system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Boat propulsion system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boat propulsion system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3443302